Q: Is 667,509 a Prime Number?
A: No, 667,509 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 667509 can be evenly divided by 1 3 101 303 2,203 6,609 222,503 and 667,509, with no remainder.
Since 667,509 cannot be divided by just 1 and 667,509, it is not a prime number.